Not sure what you mean by So assigning classes based on device If by devices you mean by type e.g. iphone, blackberry etc then no.
Media queries work based on device width - so if you want to hide something where the device width is 320px then you would use something like this.

Recently, we decided that in order to stay competitive in today's IT world, we were going to have to develop and deploy a mobile app for our users and do it quickly. We felt that we were already behind the curve.
Users of technology today are mov…

This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory.
NOTE: For Outlook 2016 and 2013 perform the exact same steps.
Open a new email: Click the New email button in Outlook.
Start typing the address: …